CN109214214B - Method and equipment for setting identity of frequency converter and frequency conversion screw unit - Google Patents
Method and equipment for setting identity of frequency converter and frequency conversion screw unit Download PDFInfo
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- CN109214214B CN109214214B CN201811153287.6A CN201811153287A CN109214214B CN 109214214 B CN109214214 B CN 109214214B CN 201811153287 A CN201811153287 A CN 201811153287A CN 109214214 B CN109214214 B CN 109214214B
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- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
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Abstract
The disclosure provides a method and equipment for setting an identity label of a frequency converter and a frequency conversion screw unit, and relates to the field of control. The method comprises the following steps: the display acquires an initial identity of the frequency converter; the display sends a control command to the frequency converter according to the initial identity of the frequency converter so as to indicate the frequency converter to reset the identity as a new identity, wherein the control command carries the new identity, and the destination address of the control command is the initial identity. Under the condition that the frequency converters do not have hardware address dial interfaces, the identity information of each frequency converter can still be set, so that the identities of the two frequency converters of the frequency conversion screw unit can be distinguished by utilizing the identity information of each frequency converter.
Description
Technical Field
The disclosure relates to the field of control, in particular to a method and equipment for setting an identity label of a frequency converter and a frequency conversion screw unit.
Background
In some variable frequency screw units, there are two compressors and two frequency converters, each frequency converter performing variable frequency control of the respective compressor. Some frequency converters are not designed with address dial interfaces during hardware design.
Disclosure of Invention
The inventor finds that some service control needs to distinguish two frequency converters, however, because the frequency converters do not have hardware address dial interfaces, the identity information of the frequency converters cannot be set in a hardware dial mode.
The scheme that the identity information of the frequency converter can be still set under the condition that the frequency converter does not have a hardware address dial interface is provided by the disclosure, so that the identities of two frequency converters of the frequency conversion screw unit can be distinguished.
Some embodiments of the present disclosure provide a method for setting an identity identifier of a frequency converter, including:
the display acquires an initial identity of the frequency converter;
the display sends a control command to the frequency converter according to the initial identification of the frequency converter to indicate the frequency converter to reset the identification as a new identification,
and the control command carries the new identity, and the destination address of the control command is the initial identity.
In some embodiments, the method further comprises:
the display receives the identity mark set by the frequency converter returned by the frequency converter;
the display compares the returned identity with the new identity;
and the display determines that the frequency converter identity mark is successfully set under the condition that the returned identity mark is consistent with the new identity mark, and determines that the frequency converter identity mark is failed to be set under the condition that the returned identity mark is inconsistent with the new identity mark.
In some embodiments, the display receives an identity set by the frequency converter returned by the frequency converter through the initial identity, wherein the new identity is effective after the frequency converter is restarted.
In some embodiments, the control command is encrypted.
In some embodiments, if there are multiple frequency converters to be configured with the id, only one frequency converter is accessed to the communication network with the initial id at the same time in the frequency converter id configuration stage.
Some embodiments of the present disclosure provide a method for setting an identity identifier of a frequency converter, including:
the frequency converter is accessed to a communication network by an initial identity;
the method comprises the steps that a frequency converter receives a control command sent by a display, wherein the control command carries a new identity mark of the frequency converter, and the destination address of the control command is the initial identity mark;
and the frequency converter resets the identity identifier as the new identity identifier according to the indication of the control command.
In some embodiments, the method further comprises: and the frequency converter returns the set identity to the display through the initial identity so that the display determines whether the frequency converter identity setting is successful through the consistency of the returned identity and the new identity, wherein the new identity takes effect after the frequency converter is restarted.
In some embodiments, the control command is encrypted, the method further comprising: the frequency converter decrypts the received control command.
Some embodiments of the present disclosure provide a display for setting an identification of a frequency converter, including:
the acquisition module is configured to acquire an initial identity of the frequency converter;
a sending module configured to send a control command to the frequency converter according to the initial identity of the frequency converter to instruct the frequency converter to reset the identity as a new identity,
and the control command carries the new identity, and the destination address of the control command is the initial identity.
In some embodiments, the display further comprises:
the receiving module is configured to receive the identity identifier set by the frequency converter, returned by the frequency converter through the initial identity identifier;
a comparison module configured to compare the returned identity with the new identity;
and the determining module is configured to determine that the frequency converter identity setting is successful under the condition that the returned identity is consistent with the new identity, and determine that the frequency converter identity setting is failed under the condition that the returned identity is inconsistent with the new identity.
In some embodiments, the display further comprises:
an encryption module configured to encrypt the control command,
the sending module is configured to send the encrypted control command to the frequency converter according to the initial identity of the frequency converter.
Some embodiments of the present disclosure provide a frequency converter for setting an identification of the frequency converter, including:
an access module configured to access a communication network with an initial identity;
the receiving module is configured to receive a control command sent by a display, wherein the control command carries a new identity of the frequency converter, and a destination address of the control command is the initial identity;
and the setting module is configured to reset the identity identifier as the new identity identifier according to the indication of the control command.
In some embodiments, the frequency converter further comprises: and the sending module is configured to return the set identity to the display through the initial identity so that the display determines whether the frequency converter identity setting is successful through the consistency of the returned identity and the new identity, wherein the new identity takes effect after the frequency converter is restarted.
In some embodiments, the control command is encrypted, and the frequency converter further comprises: a decryption module configured to decrypt the received control command.
Some embodiments of the present disclosure provide a display for setting an identification of a frequency converter, including:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of setting a transducer identity performed by a display in any of the foregoing embodiments based on instructions stored in the memory.
Some embodiments of the present disclosure provide a frequency converter for setting an identification of the frequency converter, including:
a memory; and
a processor coupled to the memory, the processor configured to execute the method for setting an identity of a transducer performed by the transducer in any of the foregoing embodiments based on instructions stored in the memory.
Some embodiments of the present disclosure provide a variable frequency screw machine set, including:
a display;
each frequency converter is used for carrying out frequency conversion control on the corresponding compressor;
the display and the two frequency converters are connected with a communication network, and only one frequency converter is accessed into the communication network with an initial identity at the same time in the frequency converter identity setting stage.
Some embodiments of the present disclosure provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the method for setting an identity of a frequency converter in any of the foregoing embodiments.
The display sends control command to the converter according to the initial identification of converter to instruct the converter to reset the identification as new identification, still can set up the identity information of each converter under the condition that the converter does not have the hardware address dial interface, thereby utilize the identity information of each converter can distinguish the identity of two converters of frequency conversion screw rod unit.
Drawings
The drawings that will be used in the description of the embodiments or the related art will be briefly described below. The present disclosure will be more clearly understood from the following detailed description, which proceeds with reference to the accompanying drawings,
it is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without undue inventive faculty.
Fig. 1 is a schematic flow chart of a method for setting an identification of a frequency converter according to some embodiments of the present disclosure.
Fig. 2 is a schematic flow chart of a method for setting an identification of a frequency converter according to some embodiments of the present disclosure.
Fig. 3a is a schematic view of a transducer identity setting interface according to some embodiments of the present disclosure.
Fig. 3b and 3c are schematic diagrams of prompt messages issued by a display in case of successful and failed setup, according to some embodiments of the present disclosure.
FIG. 4 is a schematic diagram of a display configured with a transducer identification according to some embodiments of the present disclosure.
Fig. 5 is a schematic diagram of a frequency converter with a frequency converter identification according to some embodiments of the present disclosure.
FIG. 6 is a schematic diagram of a transducer or display configured with transducer identification according to some embodiments of the present disclosure.
FIG. 7 is a schematic view of a variable frequency screw machine set according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.
Fig. 1 is a schematic flow chart of a method for setting an identification of a frequency converter according to some embodiments of the present disclosure.
As shown in fig. 1, the method of this embodiment includes: 110 to 160.
At step 110, the display obtains an initial identification of the transducer.
The initial identification of the frequency converter is a default identification, and may be set before factory shipment, for example. The display can acquire the initial identity identification of the frequency converter according to the factory parameters of the frequency converter.
In step 120, the display obtains a new identification of the transducer.
Wherein, the new identification of the frequency converter can be obtained from the configuration information set by the user. The new identification may be specified by a user, for example, who specifies different new identifications for different frequency converters, so that the identities of the frequency converters can be distinguished after the frequency converters have completed the identification setting.
In step 130, the frequency converter accesses the communication network with the initial identity.
The frequency converter can access the communication network with the initial identity, for example, when the network is accessed for the first time or the network cannot be normally accessed according to the original identity.
In addition, if a plurality of frequency converters need to be provided with the identity marks, in the phase of setting the identity marks of the frequency converters, although the frequency converters are connected with the communication network, only one frequency converter is accessed into the communication network with the initial identity mark at the same time. For example, only one of the frequency converters is powered on at the same time, and the other frequency converters are not powered on.
In step 140, the display sends a control command to the frequency converter according to the initial id of the frequency converter to instruct the frequency converter to reset the id to be a new id.
The control command carries a new identification of the frequency converter, and the destination address of the control command is the initial identification of the frequency converter, so that the control command can be addressed to the corresponding frequency converter by using the initial identification.
In step 150, the frequency converter receives a control command sent by the display.
The control command may be encrypted for display processing, for example. Accordingly, the frequency device needs to decrypt the received control command. The encryption mode may be, for example, a mode agreed by the display and the frequency converter, and the frequency converter decrypts according to the corresponding decryption mode. So that the control commands are not easily disturbed by other similar data on the bus.
In step 160, the frequency converter resets the id to a new id according to the instruction of the control command.
In the above embodiment, the display sends the control command to the frequency converter according to the initial identity of the frequency converter to instruct the frequency converter to reset the identity as a new identity, and the identity information of each frequency converter can still be set under the condition that the frequency converter does not have a hardware address dial interface, so that the identities of two frequency converters of the frequency conversion screw unit can be distinguished by using the identity information of each frequency converter.
The advantage of using the display to set the identity information of the frequency converter is that: the display uses DC power supply (being 24V usually), and the converter uses three-phase alternating current (380V), and the display CAN be supplied power by the converter contravariant, does not need other powers, and display and converter all use the CAN communication, does not need communication switching to handle, and in addition, in frequency conversion screw rod unit, the interconnecting link of display and each converter CAN be unchangeable, need not extra processing of changing the line.
In addition, the present disclosure can also confirm whether the setting of the frequency converter identity information is successful. The following examples are given by way of illustration.
Fig. 2 is a schematic flow chart of a method for setting an identification of a frequency converter according to some embodiments of the present disclosure.
As shown in fig. 2, the method of this embodiment is based on the embodiment shown in fig. 1, and further includes: steps 270, 280a and 280 b.
In step 270, the frequency converter returns the set identity to the display through the initial identity, so that the display determines whether the frequency converter identity setting is successful through the consistency of the returned identity and the new identity.
In some embodiments, the frequency converter may return the set identifier within a preset time, so that the display can timely determine whether the frequency converter identifier is successfully set. If the display fails to receive the set id returned by the frequency converter in time, after the preset time, the display may re-execute step 140, i.e. re-send the control command to re-instruct the frequency converter to re-set the id to be a new id.
For example, the frequency converter writes the new identification into the memory to set the identification information, then reads the set identification from the memory, and returns the identification read from the memory to the display, so as to determine whether the frequency converter identification setting is successful. Thereby preventing errors in the writing of the identity.
Wherein the new identity takes effect after the frequency converter is restarted. And after the new identification is not effective, the frequency converter still communicates with the display by the initial identification.
In step 280, the display receives the identity of the transducer setting returned by the transducer and compares the returned identity with the new identity recorded locally.
In step 280a, the display determines that the frequency converter identity setting is successful if the returned identity is consistent with the new identity.
In step 280b, the display determines that the frequency converter identity setting has failed in the case that the returned identity is not consistent with the new identity.
Further, the display may also issue prompt information of the setting result, for example, "setting success" and "setting failure", so that the user can intuitively determine the setting result.
The above-described embodiment can confirm whether the setting of the frequency converter identification information is successful.
The method for setting the identity of the frequency converter is very simple to operate for a user, and errors are not easy to occur.
For example, referring to the schematic diagram of the frequency converter identifier setting interface shown in fig. 3a, a user only needs to select a frequency converter to be set, and click to determine, the display will automatically obtain the initial identifier and the new identifier of the frequency converter in the configuration information, and send a control command. FIGS. 3b and 3c are the prompt messages sent by the display in the case of successful setup and failed setup, for example, "setup is successful, and the ID is valid after the inverter is powered off and restarted! "," failed to set, please reset! "
FIG. 4 is a schematic diagram of a display configured with a transducer identification according to some embodiments of the present disclosure.
As shown in fig. 4, the display includes:
an obtaining module 410 configured to obtain an initial identity and a new identity of the frequency converter.
And a sending module 420 configured to send a control command to the frequency converter according to the initial identity of the frequency converter to instruct the frequency converter to reset the identity as a new identity, where the control command carries the new identity, and a destination address of the control command is the initial identity.
In some embodiments, the display further comprises:
and a receiving module 430 configured to receive the identity of the frequency converter setting returned by the frequency converter through the initial identity.
A comparison module 440 configured to compare the returned identity with the new identity.
The determining module 450 is configured to determine that the frequency converter identity setting is successful if the returned identity is consistent with the new identity, and determine that the frequency converter identity setting is failed if the returned identity is inconsistent with the new identity.
In some embodiments, the display further comprises:
an encryption module 460 configured to encrypt the control command,
and a sending module 420 configured to send the encrypted control command to the frequency converter according to the initial identity of the frequency converter.
In the above embodiment, the display sends the control command to the frequency converter according to the initial identity of the frequency converter to instruct the frequency converter to reset the identity as a new identity, and the identity information of each frequency converter can still be set under the condition that the frequency converter does not have a hardware address dial interface, so that the identities of two frequency converters of the frequency conversion screw unit can be distinguished by using the identity information of each frequency converter. In addition, the display can also confirm whether the setting of the inverter identification information is successful.
Fig. 5 is a schematic diagram of a frequency converter with a frequency converter identification according to some embodiments of the present disclosure.
As shown in fig. 5, the frequency converter includes:
an access module 510 configured to access the communication network with the initial identity.
The receiving module 520 is configured to receive a control command sent by the display, where the control command carries a new identity of the frequency converter, and a destination address of the control command is an initial identity.
And a setting module 530 configured to reset the identity to be a new identity according to the indication of the control command.
In some embodiments, the frequency converter further comprises: and a sending module 540 configured to return the set identity to the display through the initial identity, so that the display determines whether the frequency converter identity setting is successful through consistency of the returned identity and a new identity, wherein the new identity takes effect after the frequency converter is restarted.
In some embodiments, the control command is encrypted, and the frequency converter further comprises: a decryption module 550 configured to decrypt the received control command.
In the above embodiment, the identity information of each frequency converter can still be set under the condition that the frequency converter has no hardware address dial interface, so that the identity of two frequency converters of the variable frequency screw unit can be distinguished by using the identity information of each frequency converter. Further, it is also possible to confirm whether the setting of the inverter identification information is successful.
FIG. 6 is a schematic diagram of a transducer or display configured with transducer identification according to some embodiments of the present disclosure.
As shown in fig. 6, the frequency converter or display includes: a memory 610 and a processor 620 coupled to the memory 610. The processor in the display is configured to execute the method of setting the identity of the transducer performed by the display in any of the preceding embodiments, based on instructions stored in the memory. The processor in the frequency converter is configured to execute the method for setting the identity of the frequency converter executed by the frequency converter in any of the foregoing embodiments based on the instructions stored in the memory.
The transducer or display may also include an input-output interface 630, a network interface 640, a storage interface 650, and the like. These interfaces 630, 640, 650 and the connections between the memory 610 and the processor 620 may be, for example, via a bus 660. The input/output interface 630 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 640 provides a connection interface for various networking devices. The storage interface 650 provides a connection interface for external storage devices such as an SD card and a usb disk.
FIG. 7 is a schematic view of a variable frequency screw machine set according to some embodiments of the present disclosure.
As shown in fig. 7, the variable frequency screw assembly 700 includes:
the display 710 in any of the previous embodiments;
the frequency converters 720 and 730 in any one of the two previous embodiments, wherein each frequency converter is used for carrying out frequency conversion control on the corresponding compressor;
the display and the two frequency converters are connected with the communication network, and only one frequency converter is accessed into the communication network with the initial identity identification at the same time in the frequency converter identity identification setting stage.
Therefore, under the condition that the frequency converters do not have hardware address dial interfaces, the identity information of each frequency converter can still be set through the display, and therefore the identities of the two frequency converters of the variable frequency screw unit can be distinguished by utilizing the identity information of each frequency converter. Further, it is also possible to confirm whether the setting of the inverter identification information is successful.
Some embodiments of the present disclosure further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for setting an identity of a frequency converter in any of the foregoing embodiments.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (17)
1. A method for setting an identity label of a frequency converter comprises the following steps:
the display acquires an initial identity of the frequency converter;
the display sends a control command to the frequency converter according to the initial identity of the frequency converter so as to indicate the frequency converter to reset the identity as a new identity, wherein the control command carries the new identity, and the destination address of the control command is the initial identity;
the display receives a new identity mark reset by the frequency converter, returned by the frequency converter through the initial identity mark;
the display compares the returned identity with the indicated new identity;
and the display determines that the frequency converter identity mark is successfully set under the condition that the returned identity mark is consistent with the indicated new identity mark, and determines that the frequency converter identity mark is failed to be set under the condition that the returned identity mark is inconsistent with the indicated new identity mark.
2. The method of claim 1, wherein the new identity is validated upon restart of the frequency converter.
3. The method of claim 1, wherein the control command is encrypted.
4. The method as claimed in claim 1, wherein if there are multiple transducers needing to set the ID, only one transducer is connected to the communication network where the display is located with the initial ID at the same time in the transducer ID setting stage.
5. A method for setting an identity label of a frequency converter comprises the following steps:
the frequency converter is accessed to a communication network by an initial identity;
the method comprises the steps that a frequency converter receives a control command sent by a display, wherein the control command carries a new identity mark of the frequency converter, and the destination address of the control command is the initial identity mark;
the frequency converter resets the identity identifier as the new identity identifier according to the indication of the control command;
and the frequency converter returns the reset new identity mark to the display through the initial identity mark, so that the display determines whether the frequency converter identity mark is successfully set through the consistency of the returned identity mark and the indicated new identity mark.
6. The method of claim 5, wherein the control command is processed in an encrypted manner, the method further comprising:
the frequency converter decrypts the received control command.
7. The method of claim 5, wherein if there are multiple frequency converters needing to set the identity identifier, only one frequency converter is accessed to the communication network with the initial identity identifier at the same time in the frequency converter identity identifier setting stage;
or the new identity mark takes effect after the frequency converter is restarted.
8. A display for setting transducer identification includes:
the acquisition module is configured to acquire an initial identity of the frequency converter;
the transmitting module is configured to transmit a control command to the frequency converter according to an initial identity of the frequency converter to indicate the frequency converter to reset the identity as a new identity, wherein the control command carries the new identity, and a destination address of the control command is the initial identity;
the receiving module is configured to receive a new identity identifier reset by the frequency converter through the initial identity identifier;
a comparison module configured to compare the returned identity with the indicated new identity;
and the determining module is configured to determine that the frequency converter identity setting is successful under the condition that the returned identity is consistent with the indicated new identity, and determine that the frequency converter identity setting is failed under the condition that the returned identity is inconsistent with the indicated new identity.
9. The display of claim 8, further comprising:
an encryption module configured to encrypt the control command,
the sending module is configured to send the encrypted control command to the frequency converter according to the initial identity of the frequency converter.
10. The display of claim 8, wherein if there are multiple transducers needing to be configured with the ID, only one transducer is connected to the communication network with the initial ID at the same time in the transducer ID configuration stage.
11. A frequency converter for setting an identification mark of the frequency converter comprises:
an access module configured to access a communication network with an initial identity;
the receiving module is configured to receive a control command sent by a display, wherein the control command carries a new identity of the frequency converter, and a destination address of the control command is the initial identity;
the setting module is configured to reset the identity identifier as the new identity identifier according to the indication of the control command;
and the sending module is configured to return a new reset identity to the display through the initial identity, so that the display determines whether the frequency converter identity setting is successful or not through the consistency of the returned identity and the indicated new identity.
12. The frequency converter of claim 11, wherein the control command is encrypted, further comprising:
a decryption module configured to decrypt the received control command.
13. The frequency converter according to claim 11, wherein if there are multiple frequency converters needing to set the identity identifier, only one frequency converter is accessed to the communication network with the initial identity identifier at the same time in the frequency converter identity identifier setting stage;
or the new identity mark takes effect after the frequency converter is restarted.
14. A display for setting transducer identification includes:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of setting a frequency converter identity according to any one of claims 1-4 based on instructions stored in the memory.
15. A frequency converter for setting an identification mark of the frequency converter comprises:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of setting a frequency converter identity according to any of claims 5-7 based on instructions stored in the memory.
16. A variable frequency screw machine set comprising:
a display as claimed in any one of claims 8 to 10 and 14;
two frequency converters according to any one of claims 11-13 and 15, each frequency converter performing frequency conversion control of a respective compressor;
the display and the two frequency converters are connected with a communication network, and only one frequency converter is accessed into the communication network with an initial identity at the same time in the frequency converter identity setting stage.
17. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of setting an identification of a frequency converter according to any one of claims 1 to 7.
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| CN201811153287.6A CN109214214B (en) | 2018-09-30 | 2018-09-30 | Method and equipment for setting identity of frequency converter and frequency conversion screw unit |
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| CN201811153287.6A CN109214214B (en) | 2018-09-30 | 2018-09-30 | Method and equipment for setting identity of frequency converter and frequency conversion screw unit |
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| DE102005056294B4 (en) * | 2005-11-24 | 2016-04-28 | Sew-Eurodrive Gmbh & Co Kg | Method for assigning addresses to bus users of a bus system and system |
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